public class Student {
        String name;
        String gender = "男";
        int age = 19;
        int id = 202215068;
        double score = 90;
        public String say () {
            String str = "我是:" + name + ",性别:" + gender + ",年龄:" + age +",号数:" + id + ",成绩：" + score  ;
            return str;
        }

}
